re ‧ work /ˌriːˈwɜːk $ -ˈwɜːrk/ BrE AmE verb [transitive]
[ Word Family: noun : ↑ work , ↑ workaholic , ↑ worker , ↑ working , WORKINGS ; adjective : ↑ workable ≠ ↑ unworkable , ↑ overworked , ↑ working ; verb : ↑ work , ↑ rework ]
to make changes in something such as music or a piece of writing SYN revise :
I plan to rework the whole song.